DMT Sharpening pioneered diamond-surfaced sharpening tools in 1976, developing precision-engineered bench stones that deliver consistent edge results without the hollowing or grooving of conventional whetstones. The company's Dia-Sharp continuous surface stones feature micronized monocrystalline diamonds permanently bonded to nickel-plated steel plates, providing uniform particle distribution across 6-inch, 8-inch, and 10-inch platforms. This monocrystalline diamond structure maintains particle integrity during use, unlike polycrystalline diamonds that fracture into smaller fragments under pressure. Dia-Sharp stones require no oils, working effectively dry or with water as lubricant and eliminating heat buildup that can damage blade tempers.
Aligner Guided Sharpening System
The Aligner guided system provides fixed-angle sharpening through an adjustable blade clamp with seven angle settings to match different bevel requirements. Deluxe and Pro kits include multiple 4-inch Diamond Whetstone plates in coarse, fine, and extra-fine grits, along with serrated knife sharpening accessories. The cam-lock stone holder enables quick grit changes, and interchangeable components are compatible with different knife clamp brands. Non-marring blade guides accommodate varying spine widths without scratching blade surfaces. The system's portability allows consistent angle maintenance across multiple sharpening sessions.
Dia-Paste Diamond Compound for Mirror Finishes
Dia-Paste diamond compounds deliver ultra-fine polishing beyond bench stone capabilities, packaged in 2-gram syringes for controlled application to stropping substrates. The oil-based formula contains precisely graded diamonds at 6 micron (copper-coded, 4000 mesh), 3 micron (yellow-coded, 8000 mesh), and 1 micron (gray-coded, 15000 mesh). Applied to hardwood, MDF, or leather strops, these compounds create mirror-polished bevels, reduce tool friction, and extend edge life between sharpenings. The progression from 6 micron through 1 micron removes scratches left by fine stones, achieving glossy edges that become mirror finishes for demanding edge enthusiasts.
Color-Coded Grit System and Micron Ratings
DMT uses a color-coded identification system across its sharpening products, with grit sizes measured in microns rather than mesh approximations. Extra-coarse stones (120 micron/120 mesh, silver) handle aggressive edge repair and damaged blade restoration. Coarse grit (45 micron/325 mesh, blue) quickly restores neglected edges. Fine stones (25 micron/600 mesh, red) deliver razor-sharp edges for general-purpose sharpening. Extra-fine grit (9 micron/1200 mesh, green) polishes and refines edges after coarser stone work. This progression system allows woodworkers, chefs, and outdoorsmen to move through grits methodically, achieving controlled edge refinement from stock removal through final honing.
American Manufacturing and Flat Stone Guarantee
DMT manufactures all diamond sharpening products at domestic facilities, maintaining quality control over diamond bonding processes and steel substrate preparation. The company guarantees bench stones remain permanently flat throughout their service life, never dishing or developing hollow areas that compromise sharpening geometry. Precision lapping ensures consistent flatness suitable for flattening plane soles, chisel backs, and maintaining accurate bevels on edge tools. Durable construction withstands professional use across woodworking, culinary, hunting, and tactical applications, with products designed for multi-generational service without performance degradation.
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